RM36D0EC _51 Engine / Hybrid System _087036 M20C-FKS ENGINE CONTROL _0418131 SFI SYSTEM C

M20C-FKS ENGINE CONTROL  SFI SYSTEM  P107A11  Fuel Rail Pressure Sensor (Low) / Fuel Rail Pressure Sensor "B" Circuit Short to Ground  


DESCRIPTION

A107720E69
0.177,0.688 1.521,0.969 1.344,0.281 10 false Output Voltage (V) 0.344,1.031 0.573,1.24 0.229,0.208 10 false 4.5 0.333,2.156 0.854,2.417 0.521,0.26 10 false 0.75 0.74,2.438 0.854,2.646 0.115,0.208 10 false 0 2.521,2.438 2.927,2.708 0.406,0.271 10 false 750 2.031,2.865 3.354,3.156 1.323,0.292 10 false Fuel Pressure (kPa) 0.073,0.042 2.552,0.365 2.479,0.323 10 false Characteristics of Fuel Pressure Sensor (for Low Pressure Side):

The fuel pressure sensor (for low pressure side) replaces the fuel pressure with electrical signals and outputs them to the ECM. The ECM controls the optimal fuel pressure for the operation conditions to reduce the fuel pump power consumption and improve fuel economy.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P107A11 Fuel Rail Pressure Sensor (Low) / Fuel Rail Pressure Sensor "B" Circuit Short to Ground The fuel pressure sensor (for low pressure side) output voltage is less than 0.43 V for 3 seconds or more (1 trip detection logic).
·

Open or short in fuel pressure sensor (for low pressure side) circuit

·

Fuel pressure sensor (for low pressure side)

·

ECM


Comes on DTC stored SAE: P107C

HINT:

When a DTC is output, check the Data List item "Fuel Pressure (Low) / Fuel Pressure 2" using the GTS.

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>SFI SYSTEM>DATA LIST / ACTIVE TEST

DTC No. Fuel Pressure (Low) / Fuel Pressure 2 Malfunction
P107A11 Approximately 0 kPag
·

Short to ground in PFL circuit

·

Short in PFL to EPFL circuit

·

Open in VCPF circuit



If the Data List displays a normal value, the normal value may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.


MONITOR DESCRIPTION

This DTC is stored if the fuel pressure sensor (for low pressure side) output voltage is out of the standard range due to an open or short in the sensor circuit.

MONITOR STRATEGY

Required Sensors/Components Fuel pressure sensor (for low pressure side)
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN

HINT:
·

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR

·

When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR



1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON.

3.

Turn the GTS on.

4.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

5.

Turn the ignition switch off and wait for at least 30 seconds.

6.

Start the engine.

7.

Idle the engine for 10 seconds or more [A].

8.

Turn the GTS on.

9.

Enter the following menus: Powertrain / Engine / Trouble Codes [B].

10.

Read the pending DTCs.

HINT:
·

If a pending DTC is output, the system is malfunctioning.

·

If a pending DTC is not output, perform the following procedure.



11.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

12.

Input the DTC: P107A11.

13.

Check the DTC judgment result.

GTS Display Description
NORMAL
·

DTC judgment completed

·

System normal


ABNORMAL
·

DTC judgment completed

·

System abnormal


INCOMPLETE
·

DTC judgment not completed

·

Perform driving pattern after confirming DTC enabling conditions



HINT:
·

If the judgment result is NORMAL, the system is normal.

·

If the judgment result is ABNORMAL, the system has a malfunction.

·

If the judgment result is INCOMPLETE, perform steps [A] through [B] again.

·

[A] to [B]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

·

When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.




WIRING DIAGRAM

A524925E09
0.208,2.906 0.667,3.104 0.458,0.198 10 false E5 0.198,3.083 3.375,3.417 3.177,0.333 10 false Fuel Pressure Sensor (for Low Pressure Side) 1.406,1.021 1.719,1.219 0.313,0.198 10 false VC 1.729,0.906 1.885,1.104 0.156,0.198 10 false 1 1.333,1.719 1.792,1.917 0.458,0.198 10 false PFL 1.729,1.604 1.885,1.802 0.156,0.198 10 false 2 1.417,2.49 1.729,2.688 0.313,0.198 10 false E2 1.74,2.385 1.896,2.583 0.156,0.198 10 false 3 4.281,0.927 4.594,1.125 0.313,0.198 10 false 147 4.281,1.594 4.74,1.792 0.458,0.198 10 false 149 4.281,2.406 4.594,2.604 0.313,0.198 10 false 148 4.604,0.917 5.167,1.208 0.563,0.292 10 false VCPF 4.646,1.604 5.104,1.802 0.458,0.198 10 false PFL 4.625,2.385 5.24,2.583 0.615,0.198 10 false EPFL 5.604,0.688 6.063,0.885 0.458,0.198 10 false 5 V 5.26,3.125 5.719,3.323 0.458,0.198 10 false C71 5.271,3.313 5.698,3.594 0.427,0.281 10 false ECM 5.302,1.417 5.917,1.615 0.615,0.198 10 false 180 kΩ

CAUTION / NOTICE / HINT

HINT:

Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.


PROCEDURE

1.CHECK HARNESS AND CONNECTOR
A406945C40
0.469,1.094 0.875,1.365 0.406,0.271 1.125,1.719 1.542,1.302 true 1.729,1.75 1.729,1.313 true 2.25,1.729 1.927,1.292 true 0.094,0.094 0.458,0.365 0.365,0.271 10 false *a 0.583,1.135 1.042,1.333 0.458,0.198 10 false E5 0.979,1.74 1.292,1.938 0.313,0.198 10 false VC 1.615,1.781 2.063,2.052 0.448,0.271 10 false PFL 2.198,1.771 2.51,1.969 0.313,0.198 10 false E2
*a Front view of wire harness connector
(to Fuel Pressure Sensor (for Low Pressure Side))


HINT:

Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.


a.

Disconnect the fuel pressure sensor (for low pressure side) connector.


b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Switch Condition Specified Condition
E5-1 (VC) - E5-3 (E2) Ignition switch ON 4.5 to 5.5 V
E5-2 (PFL) - E5-3 (E2) Ignition switch ON 4.4 to 5.6 V



d.

Turn the ignition switch off and wait for at least 30 seconds.


e.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Switch Condition Specified Condition
E5-1 (VC) - E5-2 (PFL) Ignition switch off 171 to 189 kΩ



HINT:

Perform "Inspection After Repair" after replacing the fuel pressure sensor (for low pressure side).

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION


Result:
Proceed to
OK
NG



OK

REPLACE FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE)

Click hereEngine / Hybrid System>M20C-FKS (FUEL)>FUEL PRESSURE SENSOR>REMOVAL


NG

2.CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE) - ECM)
2.CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE) - ECM)
a.

Disconnect the fuel pressure sensor (for low pressure side) connector.


b.

Disconnect the ECM connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
E5-1 (VC) - C71-147 (VCPF) Always Below 1 Ω
E5-2 (PFL) or C71-149 (PFL) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>ECM>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR